Die.



. U. M. PATTERSON.

DIE.

- APPLXOATIOH TILED HARM, 1909.

Patented Jan. 13, 1911;.

nurse s raws w s QSCAR M. PATTERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO GEORGE lti'. VAN FELT, OF CHICAGO, ILLINOIS.

DIE.

To all whom it may concern:

Be it .known that 1, Oscar: M. PA'ITERSON, a citizen of the United States, residing at Chicago, in the county of Cook and State'of Illinois, have invei'ited certain new and useful litipi'ovcinents in Dies, of which the following is a specification.

My invention relates to a die for stamping out of leather what are termed in the art of making shoes, top-pieces, that is, the final or lowermost lifts of the heels of boots or shoes.

' Theinvention has for its object to provide a die of simple and cheap construction which will form the edges of the lifts which it cuts outon a bevel. In order to-give these toppieces the beveled conformation, it has been customary to stamp them out .with straight edges, that is, with the edges at right an- -gles to the upper surface of the leather and then to compress the lifts in compressing machines which give the desired bevel to the edges. The amount of compression which it is necessary to give the leather in order to force it 1nto the bevel shape often results in 1 making'the top-pieceso tough and hard that y it is difficult to blind-nail it. i

so. I

* driven down upon the point of these nails,

The top-pieces of heels are usually secured to the rest of the heel by nails which are set points up in the heels, and the top-pieces which operation is accomplished by suitable machinery. It has been found that toppieccs compressed'to the bevel in compressing machines are often so hard and tough as to bend these nails.

(It is one of the objects of my invention to provide a die which will formthe lifts-as they are cut out with the bevel, thus doing away with the necessity for using the compressing-machine. Of course the compressing machine may be used to givv additional My'm bevel by compression when desired. vention provides, however, for constructing the die sothat the to1')-.picce, though out on a bevel is also subjected to a certain amount of compression which increases the bevel and serves to harden and finish the edge of the top-piece, and particularly the leather at 'the' angle between the edge and what in the fin' ished shoe is the lower surface of the heel..- In a sense, therefore, my die 18 a combined die and compressor.

A further ob ect el' the mvcntion is to give the die such it construct on as will prevent Specification of Letters Patent.

Application filed March 23, 1909'.

Patented Jan. Bill, 1910.

Serial No. 485,169.

it; from breaking out at the corners between the curved edge which cuts out the bark and sides of the lift and the straight edge which makes the cut at the forward end of the heel. The invention has for further objects such newand improved constructions in dies, and in particular in dies for cutting beveled toppieces as will be described in the following description and particularly specified in the claims appended thereto. The invention in one of its ei'nbodiments is illustrated in the accompanyingdrawings, wherein 1 Figure l is a longitudinal section through the die with parts shown in elevation- Fig. 2 a perspective view ofthe cutting end of the top-piece produced by the die.

Like characters of refercnce'indicat'e like parts in the several figures of the'd rawings.

A represents the body of the the which consists of a hollowpicce of steel with-its lower end beveled so as to form the curved cutting edge B and the straight cutting edge C. Obviously, the edge C might. be slightly concaved ifdesirable. I use the term straight. to distinguish it from the curved or bowed edge which cuts out the side and back of the lift. The curved edge B. it will be observed, is formed in part by the internal bevel D, and this bevel preferably tapers down to the junctions between edges 13 and C. This internal bevel causes the compression of the edge of the lift as it is being cut out, thereby finishing and hardening the leather at the angle between the upper surface of the leather.'-the lower when the shoe is wornand,its edge. When made necessary by the thickness of the steel, the die may be beveled externally as shown at E.

The internal bevel .l),-it will be seen, produces a corresponding inclination of the edge of the top-piece, but it is not intended under ordinary circumstances that the desired inclination should be obtained entirely by compression in this way. The die is constructed so that it makes an oblique cut. the die is constructed so that it stands obliquely on the leather, that is, it is constructed with the cutting edges C, D in a plane which is oblique to the axis of the die, '-or in other words, oblique to the direction of die, andl ig. 3 a. view in perspective of a To this end the. force applied to the die in making the cut. The upper end of the die is preferably cut. ofi or formed on a corresponding angle.

seems 8. A. die for forming heel lifts, comprising a body provided with a curved cutting edge, and a straight cutting edge, said edge lying in a plane oblique to the axis of said ,die, the curved edge being formed. with an inter al bevel, and a straight edge being foiimed entirely by an external bevel, a blocltwithin said cutting edges and a conr pression spring against the tension of which said block Works. I

9. A die for forming av heel lift comprising a hollow body having a straight cutting edge and a curved cutting edge, said curved cutting edge being formed with an internal bevel which tapers down to the junctions with the straight edge, a block Within said body which engages the upper surface of the leather, and a compresison spring against which said block works.

10. A die for forming a heel lift compris which said block works, said edges lying in a plane oblique to the axis of said die.

11 A die for forming a heel lift comprising a hollow body having a straight cutting edge and a curved cutting edge, said curved cutting edge being formed with an internal bevel which tapers down to the junctions with the straight edge, a block within said body which engages the upper surface of the leather, a compression sprin against which said block works, said edges i ing in a plane oblique to the axis of said die, and said straight edge being formed entirely by an external bevel.

12. A die for forming heel lifts comprisedge formed by an internal. bevel and an external bevel, and a straight cuttin formed entirely by an external bevel, said edges lying in a plane oblique to the axis of said die, and said internal bevel being tapered toward the junctions of the curved edge with the straight edge, a block within said body which engages the upper surface of the leather, a stem on said block, a web in said body in which said stem is guided, and a springinterposed between said block and said web.

OSCAR M. ra'rrnsson.

Witnesses P; H. TnUuAN,

E. L. BREIDERT.

ing a hollow body having a curved cutting 

